kirkaldy



(No Model.)

5 Sheets-Sheet 1.

,J. KIRKALDY.

FEED WATER HEATER. I

Patented Feb, 19, 1889..

FICJ.

5 Sheets- -Sheet 2. I

(No ModeL') J. KIRKALDY. FEED WATER HEATER.

Patented Feb. 19, 1889.

5 SheetsSheet 3.

(No Model.)

J. KIRKALDY. PEBDWATBR HEATER.

No. 398,263. Patented Feb. 19, 1889.

N. PETERS. Phololilhugmpher, Washington. 012.

5 Y D L A K R I K m FEED WATER HEATER.

Patented Feb. 19, 1889.

N PETERS, Pholobllmgrapher. wmiu m, 01c.

(No Model.) 5 SheetsShe et 5.

J. KIRKALDY.

FEED WATER HEATER.

No. 398,263. Patented Feb. 19, 1889.

f f f T J K1 i JOHN KIRKALDY, OF 10 \VEST Ih DIA DOCK ROAD, COUNTY OF MIDDLESEX,

" ENGLAND.

FEED-WATER HEATER.

I SPECIFICATION forming part of Letters Patent No. 398,263, dated February 19, 1889.

Application filed August 27, 1888. Serial No. 283,829. (No model.) Patented in England April 8, 1886, No, 4,707; in France December 1, 1886, No. 180,073; in Belgium December 6, 1886, No 75,497; in Italy December 31, 1886, No. 20,949; in Victoria January 12, 1887, No. 4,891; in South Australia January 24, 1887, No. 763-; in Queensland February 2, 1887, No. 2 16} in New South Walesliiarch 81,1887, No. 2,047, and in Canada March 6, 1888, No. 28,683.

tained Letters Patent in Great Britain,No. sec, in France, No. f

1,707, dated April 8, 1.

180,073, dated December-1, 18813; in Belgium, No. 7 5,4197 dated. December 6, 1886; in Italy,

No. 20,919, dated December 31, 1886; in Canada, No. 28,638, dated March 6, 1888; in New South Vales, No. 2,017, dated March 31, 1887; in Victoria, No. 4,891, dated January 12, 1887 in South Aust'alia, No. 763, dated January 2-1, 1887, and in Queensland, No. 216, dated February 2, 1887,) of which the following is a specification.

Although the exhaust-steam from engines 1 fitted with surface COIIGGIISCI'S is passed back to the boilers as water, there is a small waste of water in the cycle-i'rom. boiler to engine and engine to boiler-which must be made up by water occasionally added to the boiler from without. To effect this, I vaporize a portion of the circulating water (which has become heated by abstracting heat from the steam passing into the condenser) by bringing such already-heated water into contact with surends, and with coiled pipes b passing through faces heated by the exhaust-steam on its way from the engine to the condenser, and I con-- hereinafter described, so as to form them into one compact apparatus.

. Figure 1 is an elevation, partly in section, of one form of apparatus constructed according to my invention, in whichthe feed-heater, evaporator, and condenser are placed one above the other. Fig. 2 is a side elevation, and Fig. 8 a plan of a modification, in which these three parts are in a row alongside of one another. Fig. 4 is a side elevation, and Fig. 5a plan of a similar construction, with the three parts side by side and ranged in a triangle, and with asinall steam-engine combined with them of snilicientpower for workin g the airunnps, circulatiiig-pumps, and feed-pumps for the main engines. Fig. 6 is an elevation, partly in section, and Fig. 7 an end view, of a modification in which the evaporator is placed above the top of a marine boiler of ordinary type.

In Fig. 1 A is the feed-water heater, B the evaporator, and the condenser. The heater is composed of a cylindrical casing with tubeplatcs a a across its ends and with coiled pipes to passing through the casing from one tubeplate to the other; Above the upper tubeplate is a doi'ne-cover, to which exhaust-steam from the engine is admitted by the inlet D. The feed-water to be heated is admitted by the pipe E to the cylindrical casing of the heater A and passes oil? to the boilers through the outlet E, after being heated by the ex haust-steam passing through the coiled pipes a. The evaporator is composed of a cylindrical casingwith tubeplates b b passing across its the casing from one tube-plate to the other. The evaporator is separated from the heater by a steam-space, F, in the outer cylindrical casing of which are doors F, to allow'of the tube-connections being readily got at. The condenser C is formed similarly to the evapo rator and heater, with tube 0' and tube-plate 0. At the top it is separated from the evaporator by a steam-space, G. Circulating or cooling water is admitted to the lower part of the cylindrical casing of the condenser C by the pipe II, and passes away from the upper part of this casing by the pipe I. The cylindrical casing of the evaporator is kept about through the pipe J, fitted with a tap, J.

half full of water drawn from the upper part of the cylindrical casing of the condenser K is a gage-glass, by which the height of water in the evaporator can be seen. L is a pipe by which vapor produced in the cylindrical easing of the evaporator is led away to the steamspace G, so that it may pass to the condensertubes, together with the exhaust-steam from the engine. M is a well or chamber below the bottom of the condenser, in which water resultingfrom the condensation of the steam accumulates, an d is drawn off by the feed-pumps of the engine, to be supplied to the heater A through the pipe E, and thence to the boilers through the pipe E.

In Figs. 2 and 3 the feed-water heater A, evaporator B, and condenser C are. placed. in a line side by side. The bottom chamber of the feed-water heater is connected by a pipe, A, with the top chamber of the evaporator, and the bottom chamber of the evaporator is connected by a pipe, 13, with the top chamber of. the condenser. The exhaust-steam from an engine enters the top chamber of the feed-water heater through the pipe D, while a pipe, M, passes from the bottom chamber of the condenser to the air-pump of the engine. The feed-water to be heated passes into the bottom of the casing of the feed-heater through the pipe E, and passes oif from the top to the boiler through the pipe E. Cooling or circulating water is supplied to the bottom of the condenser through the pipe H, and passes off at the top through. the pipe I. Part of the circulating water, which has become heated in its passage through. the condenser-casing, can from time to time be drawn off into the casing of the evaporator through.

the pipe J. L is a pipe leading from the upper part of the evaporator-casing, by which vapor produced in the evaporator is conveyed to the condenser to be condensed with the exhaust-steam from the engine. K is a gageglass for indicating the height of water in the evaporator.

In Figs. 4 and 5 A is the feed-water heater, B the evaporator, and O the condenser. O O are the steam-cylinders of the auxiliary engine. P P are the air-pumps, and Q Q the pumps for delivering circulating or cooling water to the condenser. H is the suction-pipe for the circulating-pumps H, the delivery-pipe passing from the pumps to the bottom of the. condenser-casing. I is the circulating deliverypipe from the top of the condenser -cas'ing. ,D isv the exhaust from the main engine to the feed-heater D, exhaustfrom auxiliaryen gine to the feed-heater. .A is the exhaust from the bottom of the feed-heater to the top of the evaporator, and B the exhaust from the bottom of the evaporator to the top of the condenser. M is the. air-pump suction passing from. the bottom chamber of the condenser, and Mithe air-pump deliver R. isthesteal'nsupply pipe to the cylindersof the auxiliary. J is the pipe by which a portion of the heated circulating water can be led off from the top of the condenser-casing to the evaporator. L

is a pipe to convey vapor from the upper part of the evaporator to the condenser, and E is the pipe by which heated feed-water passes off to the boilers.

I11 the construction shown at Figs. 6 and 7 the condenser C is of the ordinary type used with marine engines. B is an evaporator placed above it. J is a pipe fitted with a tap, J, by which part of the circulating or cooling water can be drawn from the condenser into the evaporator. L is a pipe by which vapor produced in the evaporator is led away to the interior of' the condensen. D is the inlet by which exhaust-steam from the engine is admitted to the steam-tubes of the evaporator. From the lower ends of the tubes the steam passes into the interior of the ordinary condenser. M is a pipe fitted with a cock, by which brine residuum can be drawn off from time to time by a brine-pump. N is a pipe fitted. with a cock, by which impurities floating on the surface of the water may from time to time be drawn off.

Having now particularly described and certained the nature of my said intention and in what manner the same is to be performed,

I. declare that what I claim is I. The combination, substantially as here inbefore set forth, of the feed-water heater, the condenser, the evaporator interposed between the feed-water heater and the condenser, and exhaust-steam pipes passing through the heater, the evaporator, and the condenser, the inlet and outlet openings for feed-water in the feed-water heater, the inlet and outlet openings for cooling-water in the condenser, and the pipes connecting the condenser with the evaporator.

2. The combination, substantially as here inbefore set forth, of the condenser, the evaporator arranged above the condenser and communieating therewith, the feed-water heater arranged above the evaporator, the exhauststeam pipes extending through the heater, the evaporator, and the condenser, the inlet and. outlet openings in the condenser for cooling-water, the inlet and outlet openings in the heater for feed-water, a pipe leading from the condenser to the evaporator eonveyin g warmed water from. the condenser to the evaporator, and the vapor-pipe leading from the top of the evaporator to the condenser.

3. The combination, substantially as here- 'i'n'before set-forth, of. the condenser, the evaporator'arrangedabove the condenser, the coiled .exh'aust-stea1n. pipes in the evaporator, the

IIO

pipe leading from the condenser to the evapoing Water which has become heated in the conrator for supplying water which has become denser from the condenser-easing to the easheated in the condenser from the condensering' of the evaporator, and a vapor-pipe passeasing' to the easing of the evaporator, and a ing' from the upper part of the evaporator to 15 5 vaponpipe passing from the upper part of the the interior of the condenser, substantially evaporatoneasing to the interior of the conas set forth.

denser, substantially as set forth.

5. The combination of an evaporator and a Witnesses:

JOHN KIRKALDY.

surface condenser having pipes passing HERBERT E. DALE, IO through each, through which exhaust-steam is JNO. DEAN,

passed successively, a feed-pipe for supply- Both of 17 Gmoechmch Street, LondomE. C. 

